BMW is planning to inject some serious power under the hood of its sexy 6-Series Gran Coupe sports sedan with the addition of a flagship version wearing the iconic M badge.
However, don't expect any prizes for guessing the power source as it's a well-known fact that all upper level BMW M models are motivated by the same or in some cases, mildly modified version of the brand's 4.4-liter bi-turbo V8 engine.
We anticipate that it will be the same unit found in the brand-new M6 Coupe and Convertible models with the internal designation S63Tü.
And while there's always the possibility of BMW M engineers fiddling around with the electronics to push out a few more ponies, chances are it will deliver the same output at 560-horses (412kW) between 5,750 and 7,000 rpm, and a peak torque of 680Nm (502lb-ft) from 1,500 to 5,750 rpm.
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